﻿using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace Cat.Utility
{
    /// <summary>
    /// 中文辅助类
    /// </summary>
    public static class ChineseHelper
    {

        /// <summary>
        /// 取得字符串中的所有中文
        /// </summary>
        /// <param name="content">原始串</param>
        /// <returns>原始串中的中文集合</returns>
        public static List<char> GetChineseChars(this string content)
        {
            var chineseList = new List<char>();
            const string regStr = "[\u4e00-\u9fa5]+";
            var reg = new Regex(regStr, RegexOptions.IgnoreCase | RegexOptions.Compiled);
            foreach (var chars in from Match mc in reg.Matches(content) select mc.Groups[0].Value.ToCharArray())
            {
                chineseList.AddRange(chars);
            }
            return chineseList;
        }

        /// <summary>
        /// 取得字符串中的所有中文
        /// </summary>
        /// <param name="content">原始串</param>
        /// <returns>原始串中的中文集合</returns>
        public static List<string> GetChineseStrings(this string content)
        {
            const string regStr = "[\u4e00-\u9fa5]+";
            var reg = new Regex(regStr, RegexOptions.IgnoreCase | RegexOptions.Compiled);
            return (from Match mc in reg.Matches(content) select mc.Groups[0].Value).ToList();
        }

        /// <summary>
        /// 取得字符串中的所有中文 
        /// </summary>
        /// <param name="content">原始串</param>
        /// <returns>原始串中的中文集合</returns>
        public static List<string> GetChineseString(string content)
        {
            var chineseList = new List<string>();
            const string regStr = "[\u4e00-\u9fa5]+";
            var reg = new Regex(regStr, RegexOptions.IgnoreCase | RegexOptions.Compiled);
            foreach (Match mc in reg.Matches(content))
            {
                chineseList.Add(mc.Groups[0].Value);
            }
            return chineseList;
        }

        #region     汉字转拼音静态类,包括功能全拼和缩写，方法全部是静态的

        #region 属性数据定义

        /// <summary>
        ///     汉字的机内码数组
        /// </summary>
        private static readonly int[] PyValue = new[]
                                                    {
                                                        -20319, -20317, -20304, -20295, -20292, -20283, -20265, -20257,
                                                        -20242, -20230, -20051, -20036,
                                                        -20032, -20026, -20002, -19990, -19986, -19982, -19976, -19805,
                                                        -19784, -19775, -19774, -19763,
                                                        -19756, -19751, -19746, -19741, -19739, -19728, -19725, -19715,
                                                        -19540, -19531, -19525, -19515,
                                                        -19500, -19484, -19479, -19467, -19289, -19288, -19281, -19275,
                                                        -19270, -19263, -19261, -19249,
                                                        -19243, -19242, -19238, -19235, -19227, -19224, -19218, -19212,
                                                        -19038, -19023, -19018, -19006,
                                                        -19003, -18996, -18977, -18961, -18952, -18783, -18774, -18773,
                                                        -18763, -18756, -18741, -18735,
                                                        -18731, -18722, -18710, -18697, -18696, -18526, -18518, -18501,
                                                        -18490, -18478, -18463, -18448,
                                                        -18447, -18446, -18239, -18237, -18231, -18220, -18211, -18201,
                                                        -18184, -18183, -18181, -18012,
                                                        -17997, -17988, -17970, -17964, -17961, -17950, -17947, -17931,
                                                        -17928, -17922, -17759, -17752,
                                                        -17733, -17730, -17721, -17703, -17701, -17697, -17692, -17683,
                                                        -17676, -17496, -17487, -17482,
                                                        -17468, -17454, -17433, -17427, -17417, -17202, -17185, -16983,
                                                        -16970, -16942, -16915, -16733,
                                                        -16708, -16706, -16689, -16664, -16657, -16647, -16474, -16470,
                                                        -16465, -16459, -16452, -16448,
                                                        -16433, -16429, -16427, -16423, -16419, -16412, -16407, -16403,
                                                        -16401, -16393, -16220, -16216,
                                                        -16212, -16205, -16202, -16187, -16180, -16171, -16169, -16158,
                                                        -16155, -15959, -15958, -15944,
                                                        -15933, -15920, -15915, -15903, -15889, -15878, -15707, -15701,
                                                        -15681, -15667, -15661, -15659,
                                                        -15652, -15640, -15631, -15625, -15454, -15448, -15436, -15435,
                                                        -15419, -15416, -15408, -15394,
                                                        -15385, -15377, -15375, -15369, -15363, -15362, -15183, -15180,
                                                        -15165, -15158, -15153, -15150,
                                                        -15149, -15144, -15143, -15141, -15140, -15139, -15128, -15121,
                                                        -15119, -15117, -15110, -15109,
                                                        -14941, -14937, -14933, -14930, -14929, -14928, -14926, -14922,
                                                        -14921, -14914, -14908, -14902,
                                                        -14894, -14889, -14882, -14873, -14871, -14857, -14678, -14674,
                                                        -14670, -14668, -14663, -14654,
                                                        -14645, -14630, -14594, -14429, -14407, -14399, -14384, -14379,
                                                        -14368, -14355, -14353, -14345,
                                                        -14170, -14159, -14151, -14149, -14145, -14140, -14137, -14135,
                                                        -14125, -14123, -14122, -14112,
                                                        -14109, -14099, -14097, -14094, -14092, -14090, -14087, -14083,
                                                        -13917, -13914, -13910, -13907,
                                                        -13906, -13905, -13896, -13894, -13878, -13870, -13859, -13847,
                                                        -13831, -13658, -13611, -13601,
                                                        -13406, -13404, -13400, -13398, -13395, -13391, -13387, -13383,
                                                        -13367, -13359, -13356, -13343,
                                                        -13340, -13329, -13326, -13318, -13147, -13138, -13120, -13107,
                                                        -13096, -13095, -13091, -13076,
                                                        -13068, -13063, -13060, -12888, -12875, -12871, -12860, -12858,
                                                        -12852, -12849, -12838, -12831,
                                                        -12829, -12812, -12802, -12607, -12597, -12594, -12585, -12556,
                                                        -12359, -12346, -12320, -12300,
                                                        -12120, -12099, -12089, -12074, -12067, -12058, -12039, -11867,
                                                        -11861, -11847, -11831, -11798,
                                                        -11781, -11604, -11589, -11536, -11358, -11340, -11339, -11324,
                                                        -11303, -11097, -11077, -11067,
                                                        -11055, -11052, -11045, -11041, -11038, -11024, -11020, -11019,
                                                        -11018, -11014, -10838, -10832,
                                                        -10815, -10800, -10790, -10780, -10764, -10587, -10544, -10533,
                                                        -10519, -10331, -10329, -10328,
                                                        -10322, -10315, -10309, -10307, -10296, -10281, -10274, -10270,
                                                        -10262, -10260, -10256, -10254
                                                    };

        /// <summary>
        ///     机内码对应的拼音数组
        /// </summary>
        private static readonly string[] PyName = new[]
                                                      {
                                                          "A", "Ai", "An", "Ang", "Ao", "Ba", "Bai", "Ban", "Bang",
                                                          "Bao", "Bei", "Ben",
                                                          "Beng", "Bi", "Bian", "Biao", "Bie", "Bin", "Bing", "Bo", "Bu"
                                                          , "Ba", "Cai", "Can",
                                                          "Cang", "Cao", "Ce", "Ceng", "Cha", "Chai", "Chan", "Chang",
                                                          "Chao", "Che", "Chen", "Cheng",
                                                          "Chi", "Chong", "Chou", "Chu", "Chuai", "Chuan", "Chuang",
                                                          "Chui", "Chun", "Chuo", "Ci", "Cong",
                                                          "Cou", "Cu", "Cuan", "Cui", "Cun", "Cuo", "Da", "Dai", "Dan",
                                                          "Dang", "Dao", "De",
                                                          "Deng", "Di", "Dian", "Diao", "Die", "Ding", "Diu", "Dong",
                                                          "Dou", "Du", "Duan", "Dui",
                                                          "Dun", "Duo", "E", "En", "Er", "Fa", "Fan", "Fang", "Fei",
                                                          "Fen", "Feng", "Fo",
                                                          "Fou", "Fu", "Ga", "Gai", "Gan", "Gang", "Gao", "Ge", "Gei",
                                                          "Gen", "Geng", "Gong",
                                                          "Gou", "Gu", "Gua", "Guai", "Guan", "Guang", "Gui", "Gun",
                                                          "Guo", "Ha", "Hai", "Han",
                                                          "Hang", "Hao", "He", "Hei", "Hen", "Heng", "Hong", "Hou", "Hu"
                                                          , "Hua", "Huai", "Huan",
                                                          "Huang", "Hui", "Hun", "Huo", "Ji", "Jia", "Jian", "Jiang",
                                                          "Jiao", "Jie", "Jin", "Jing",
                                                          "Jiong", "Jiu", "Ju", "Juan", "Jue", "Jun", "Ka", "Kai", "Kan"
                                                          , "Kang", "Kao", "Ke",
                                                          "Ken", "Keng", "Kong", "Kou", "Ku", "Kua", "Kuai", "Kuan",
                                                          "Kuang", "Kui", "Kun", "Kuo",
                                                          "La", "Lai", "Lan", "Lang", "Lao", "Le", "Lei", "Leng", "Li",
                                                          "Lia", "Lian", "Liang",
                                                          "Liao", "Lie", "Lin", "Ling", "Liu", "Long", "Lou", "Lu", "Lv"
                                                          , "Luan", "Lue", "Lun",
                                                          "Luo", "Ma", "Mai", "Man", "Mang", "Mao", "Me", "Mei", "Men",
                                                          "Meng", "Mi", "Mian",
                                                          "Miao", "Mie", "Min", "Ming", "Miu", "Mo", "Mou", "Mu", "Na",
                                                          "Nai", "Nan", "Nang",
                                                          "Nao", "Ne", "Nei", "Nen", "Neng", "Ni", "Nian", "Niang",
                                                          "Niao", "Nie", "Nin", "Ning",
                                                          "Niu", "Nong", "Nu", "Nv", "Nuan", "Nue", "Nuo", "O", "Ou",
                                                          "Pa", "Pai", "Pan",
                                                          "Pang", "Pao", "Pei", "Pen", "Peng", "Pi", "Pian", "Piao",
                                                          "Pie", "Pin", "Ping", "Po",
                                                          "Pu", "Qi", "Qia", "Qian", "Qiang", "Qiao", "Qie", "Qin",
                                                          "Qing", "Qiong", "Qiu", "Qu",
                                                          "Quan", "Que", "Qun", "Ran", "Rang", "Rao", "Re", "Ren",
                                                          "Reng", "Ri", "Rong", "Rou",
                                                          "Ru", "Ruan", "Rui", "Run", "Ruo", "Sa", "Sai", "San", "Sang",
                                                          "Sao", "Se", "Sen",
                                                          "Seng", "Sha", "Shai", "Shan", "Shang", "Shao", "She", "Shen",
                                                          "Sheng", "Shi", "Shou", "Shu",
                                                          "Shua", "Shuai", "Shuan", "Shuang", "Shui", "Shun", "Shuo",
                                                          "Si", "Song", "Sou", "Su", "Suan",
                                                          "Sui", "Sun", "Suo", "Ta", "Tai", "Tan", "Tang", "Tao", "Te",
                                                          "Teng", "Ti", "Tian",
                                                          "Tiao", "Tie", "Ting", "Tong", "Tou", "Tu", "Tuan", "Tui",
                                                          "Tun", "Tuo", "Wa", "Wai",
                                                          "Wan", "Wang", "Wei", "Wen", "Weng", "Wo", "Wu", "Xi", "Xia",
                                                          "Xian", "Xiang", "Xiao",
                                                          "Xie", "Xin", "Xing", "Xiong", "Xiu", "Xu", "Xuan", "Xue",
                                                          "Xun", "Ya", "Yan", "Yang",
                                                          "Yao", "Ye", "Yi", "Yin", "Ying", "Yo", "Yong", "You", "Yu",
                                                          "Yuan", "Yue", "Yun",
                                                          "Za", "Zai", "Zan", "Zang", "Zao", "Ze", "Zei", "Zen", "Zeng",
                                                          "Zha", "Zhai", "Zhan",
                                                          "Zhang", "Zhao", "Zhe", "Zhen", "Zheng", "Zhi", "Zhong",
                                                          "Zhou", "Zhu", "Zhua", "Zhuai", "Zhuan",
                                                          "Zhuang", "Zhui", "Zhun", "Zhuo", "Zi", "Zong", "Zou", "Zu",
                                                          "Zuan", "Zui", "Zun", "Zuo"
                                                      };

        #endregion

        #region 把汉字转换成拼音(全拼)无间隔符号

        /// <summary>
        ///     把汉字转换成拼音(全拼)
        /// </summary>
        /// <param name="hanZi">汉字字符串</param>
        /// <returns>转换后的拼音(全拼)字符串</returns>
        public static string ToPinyinString(this string hanZi)
        {
            // 匹配中文字符
            var regex = new Regex("^[\u4e00-\u9fa5]$");
            string pyString = "";
            char[] charArray = hanZi.ToCharArray();

            for (int j = 0; j < charArray.Length; j++)
            {
                // 中文字符
                if (regex.IsMatch(charArray[j].ToString(CultureInfo.InvariantCulture)))
                {
                    byte[] array = Encoding.Default.GetBytes(charArray[j].ToString(CultureInfo.InvariantCulture));
                    int i1 = (array[0]);
                    int i2 = (array[1]);
                    int chrAsc = i1 * 256 + i2 - 65536;
                    if (chrAsc > 0 && chrAsc < 160)
                    {
                        pyString += charArray[j];
                    }
                    else
                    {
                        // 修正部分文字
                        if (chrAsc == -9254) // 修正“圳”字
                            pyString += "Zhen";
                        else
                        {
                            for (int i = (PyValue.Length - 1); i >= 0; i--)
                            {
                                if (PyValue[i] <= chrAsc)
                                {
                                    pyString += PyName[i];
                                    break;
                                }
                            }
                        }
                    }
                }
                // 非中文字符
                else
                {
                    pyString += charArray[j].ToString(CultureInfo.InvariantCulture);
                }
            }
            return pyString;
        }

        #endregion

        #region 把汉字转换成拼音(全拼) 用空格间隔

        /// <summary>
        ///     把汉字转换成拼音(全拼)
        /// </summary>
        /// <param name="hzString">汉字字符串</param>
        /// <returns>转换后的拼音(全拼)字符串</returns>
        public static string ToPinyinStringWithBlank(this string hzString)
        {
            // 匹配中文字符
            var regex = new Regex("^[\u4e00-\u9fa5]$");
            string pyString = "";
            char[] charArray = hzString.ToCharArray();

            for (int j = 0; j < charArray.Length; j++)
            {
                // 中文字符
                if (regex.IsMatch(charArray[j].ToString(CultureInfo.InvariantCulture)))
                {
                    byte[] array = Encoding.Default.GetBytes(charArray[j].ToString(CultureInfo.InvariantCulture));
                    int i1 = (array[0]);
                    int i2 = (array[1]);
                    int chrAsc = i1 * 256 + i2 - 65536;
                    if (chrAsc > 0 && chrAsc < 160)
                    {
                        pyString = pyString + " " + charArray[j];
                    }
                    else
                    {
                        // 修正部分文字
                        if (chrAsc == -9254) // 修正“圳”字
                            pyString = pyString + " " + "Zhen";
                        else
                        {
                            for (int i = (PyValue.Length - 1); i >= 0; i--)
                            {
                                if (PyValue[i] <= chrAsc)
                                {
                                    pyString = pyString + " " + PyName[i];
                                    break;
                                }
                            }
                        }
                    }
                }
                // 非中文字符
                else
                {
                    pyString = pyString + " " + charArray[j].ToString(CultureInfo.InvariantCulture);
                }
            }
            return pyString.Trim();
        }

        #endregion

        #region 把汉字转换成拼音(全拼) 用特定的字符间隔

        /// <summary>
        ///     把汉字转换成拼音(全拼)
        /// </summary>
        /// <param name="hzString">汉字字符串</param>
        /// <param name="splitChar"></param>
        /// <returns>转换后的拼音(全拼)字符串</returns>
        public static string ToPinyinStringWithSplitChar(this string hzString, string splitChar)
        {
            // 匹配中文字符
            var regex = new Regex("^[\u4e00-\u9fa5]$");
            string pyString = "";
            char[] charArray = hzString.ToCharArray();

            for (int j = 0; j < charArray.Length; j++)
            {
                // 中文字符
                if (regex.IsMatch(charArray[j].ToString(CultureInfo.InvariantCulture)))
                {
                    byte[] array = Encoding.Default.GetBytes(charArray[j].ToString(CultureInfo.InvariantCulture));
                    int i1 = (array[0]);
                    int i2 = (array[1]);
                    int chrAsc = i1 * 256 + i2 - 65536;
                    if (chrAsc > 0 && chrAsc < 160)
                    {
                        pyString = pyString + splitChar + charArray[j];
                    }
                    else
                    {
                        // 修正部分文字
                        if (chrAsc == -9254) // 修正“圳”字
                            pyString = pyString + splitChar + "Zhen";
                        else
                        {
                            for (int i = (PyValue.Length - 1); i >= 0; i--)
                            {
                                if (PyValue[i] <= chrAsc)
                                {
                                    pyString = pyString + splitChar + PyName[i];
                                    break;
                                }
                            }
                        }
                    }
                }
                // 非中文字符
                else
                {
                    pyString = pyString + splitChar + charArray[j].ToString(CultureInfo.InvariantCulture);
                }
            }
            char[] trimAChar = splitChar.ToCharArray();
            return pyString.TrimStart(trimAChar);
        }

        #endregion

        #region 汉字转拼音缩写 (字符串) (小写)

        /// <summary>
        ///     汉字转拼音缩写
        /// </summary>
        /// <param name="chineseString">要转换的汉字字符串</param>
        /// <returns>拼音缩写</returns>
        public static string GetSpellStringLower(string chineseString)
        {
            string tempStr = "";
            foreach (char c in chineseString)
            {
                if (c >= 33 && c <= 126)
                {
                    //字母和符号原样保留
                    tempStr += c.ToString(CultureInfo.InvariantCulture);
                }
                else
                {
                    //累加拼音声母
                    tempStr += ToLowerSpellChar(c.ToString(CultureInfo.InvariantCulture));
                }
            }
            return tempStr;
        }

        #endregion

        #region 汉字转拼音缩写 (字符串) (小写) (空格间隔)

        /// <summary>
        ///     汉字转拼音缩写 (字符串) (小写) (空格间隔)
        /// </summary>
        /// <param name="str">要转换的汉字字符串</param>
        /// <returns>拼音缩写</returns>
        public static string GetSpellStringLowerSplitWithBlank(string str)
        {
            string tempStr = "";
            foreach (char c in str)
            {
                if (c >= 33 && c <= 126)
                {
                    //字母和符号原样保留
                    tempStr = tempStr + " " + c.ToString(CultureInfo.InvariantCulture);
                }
                else
                {
                    //累加拼音声母
                    tempStr = tempStr + " " + ToLowerSpellChar(c.ToString(CultureInfo.InvariantCulture));
                }
            }
            return tempStr.Trim();
        }

        #endregion

        #region 汉字转拼音缩写 (字符串)(大写)

        /// <summary>
        ///     汉字转拼音缩写 (大写)
        /// </summary>
        /// <param name="str">要转换的汉字字符串</param>
        /// <returns>拼音缩写</returns>
        public static string ToFirstrCharUpperSpellString(this string str)
        {
            string s = "";
            foreach (char c in str)
            {
                if (c >= 33 && c <= 126)
                {
                    //字母和符号原样保留
                    s += c.ToString(CultureInfo.InvariantCulture);
                }
                else
                {
                    //累加拼音声母
                    s += ChanageChineseCharToSpellChar(c.ToString(CultureInfo.InvariantCulture));
                }
            }
            return s;
        }

        #endregion

        #region 汉字转拼音缩写 (字符串)(大写)(空格间隔)

        /// <summary>
        ///     汉字转拼音缩写  (字符串)(大写)(空格间隔)
        /// </summary>
        /// <param name="str">要转换的汉字字符串</param>
        /// <returns>拼音缩写</returns>
        public static string ToSupperSpellStringWithBlank(this string str)
        {
            string tempStr = "";
            foreach (char c in str)
            {
                if (c >= 33 && c <= 126)
                {
                    //字母和符号原样保留
                    tempStr = tempStr + " " + c.ToString(CultureInfo.InvariantCulture);
                }
                else
                {
                    //累加拼音声母
                    tempStr = tempStr + " " + ChanageChineseCharToSpellChar(c.ToString(CultureInfo.InvariantCulture));
                }
            }
            return tempStr.Trim();
        }

        #endregion

        #region 取单个字符的拼音声母(字符)(大写)

        /// <summary>
        ///     取单个字符的拼音声母
        /// </summary>
        /// <param name="c">要转换的单个汉字</param>
        /// <returns>拼音声母</returns>
        private static string ChanageChineseCharToSpellChar(this string c)
        {
            if (!string.IsNullOrEmpty(c.Trim()))
            {
                byte[] array = Encoding.Default.GetBytes(c);
                int i = (short)(array[0] - '\0') * 256 + ((short)(array[1] - '\0'));

                if (i < 0xB0A1) return c;
                if (i < 0xB0C5) return "A";
                if (i < 0xB2C1) return "B";
                if (i < 0xB4EE) return "C";
                if (i < 0xB6EA) return "D";
                if (i < 0xB7A2) return "E";
                if (i < 0xB8C1) return "F";
                if (i < 0xB9FE) return "G";
                if (i < 0xBBF7) return "H";
                if (i < 0xBFA6) return "J";
                if (i < 0xC0AC) return "K";
                if (i < 0xC2E8) return "L";
                if (i < 0xC4C3) return "M";
                if (i < 0xC5B6) return "N";
                if (i < 0xC5BE) return "O";
                if (i < 0xC6DA) return "P";
                if (i < 0xC8BB) return "Q";
                if (i < 0xC8F6) return "R";
                if (i < 0xCBFA) return "S";
                if (i < 0xCDDA) return "T";
                if (i < 0xCEF4) return "W";
                if (i < 0xD1B9) return "X";
                if (i < 0xD4D1) return "Y";
                if (i < 0xD7FA) return "Z";
                return c;
            }
            return string.Empty;
        }

        #endregion

        #region 取单个字符的拼音声母(字符)(小写)

        /// <summary>
        ///     取单个字符的拼音声母
        /// </summary>
        /// <param name="chineseString">要转换的单个汉字</param>
        /// <returns>拼音声母</returns>
        private static string ToLowerSpellChar(this string chineseString)
        {
            byte[] array = Encoding.Default.GetBytes(chineseString);
            int i = (short)(array[0] - '\0') * 256 + ((short)(array[1] - '\0'));

            if (i < 0xB0A1) return chineseString;
            if (i < 0xB0C5) return "a";
            if (i < 0xB2C1) return "b";
            if (i < 0xB4EE) return "c";
            if (i < 0xB6EA) return "d";
            if (i < 0xB7A2) return "e";
            if (i < 0xB8C1) return "f";
            if (i < 0xB9FE) return "g";
            if (i < 0xBBF7) return "h";
            if (i < 0xBFA6) return "j";
            if (i < 0xC0AC) return "k";
            if (i < 0xC2E8) return "l";
            if (i < 0xC4C3) return "m";
            if (i < 0xC5B6) return "n";
            if (i < 0xC5BE) return "o";
            if (i < 0xC6DA) return "p";
            if (i < 0xC8BB) return "q";
            if (i < 0xC8F6) return "r";
            if (i < 0xCBFA) return "s";
            if (i < 0xCDDA) return "t";
            if (i < 0xCEF4) return "w";
            if (i < 0xD1B9) return "x";
            if (i < 0xD4D1) return "y";
            if (i < 0xD7FA) return "z";
            return chineseString;
        }

        #endregion

        #endregion

    }
}